CN210384935U - Equipment for oil-water separation - Google Patents

Equipment for oil-water separation Download PDF

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CN210384935U
CN210384935U CN201921292728.0U CN201921292728U CN210384935U CN 210384935 U CN210384935 U CN 210384935U CN 201921292728 U CN201921292728 U CN 201921292728U CN 210384935 U CN210384935 U CN 210384935U
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oil
water separation
module
cavity
liquid
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谭微
刘城淼
佟宇辰
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Shanghai Greensun Environmental Protection Technology Co ltd
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Shanghai Greensun Environmental Protection Technology Co ltd
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Abstract

The utility model discloses equipment for oil-water separation, which comprises an oil-water separation cavity and an oil removal module arranged above the oil-water separation cavity; the inside in oil-water separation chamber is equipped with: the oil drop polymerization module and the nano air flotation module can generate nano vacuoles; wherein the oil drop polymerization module comprises: the molecular condensation reaction cavity and the plurality of layers of baffles are arranged in the molecular condensation reaction cavity; the section of the baffle is wavy, and through holes for oil and water to flow through are formed in the wave crests and wave troughs of the waves; a liquid inlet is formed in the bottom of the molecular condensation reaction cavity, and a liquid outlet is formed in the top of the molecular condensation reaction cavity; the nano air flotation module is arranged above the oil drop polymerization module; the deoiling module contains: oleophylic and hydrophobic plate, scraping blade and oil collecting tank. The utility model discloses a numerous advantages such as add chemical agent, no secondary pollution are not introduced to equipment, can effectually separate out heterogeneous oil in the middle of the oily waste liquid, be an economic environmental protection's waste liquid treatment equipment.

Description

Equipment for oil-water separation
Technical Field
The utility model relates to an oil-water mixture handles technical field, concretely relates to an equipment for water oil separating.
Background
In modern industrial production and daily life, a large amount of oily wastewater is generated, and grease contained in the wastewater causes great damage to the environment and ecological balance. Heterogeneous oil in oily waste liquid usually contains three states, namely floating oil, free oil and emulsified oil. The floating oil is the common oil stain floating on the surface of the liquid and can be removed by some simple physical isolation methods; the free grease is common oil drops suspended in liquid, and the diameter of the oil drops is smaller; the emulsified oil is some surface oily substances, such as soaps, polymer synthetic substances and the like, and is suspended in wastewater in a fine water-in-oil state, the particle size of oil droplets is less than 10 micrometers, generally 0.1-0.2 micrometers, and the oil droplets are combined with water molecules particularly firmly because a certain amount of surfactant is contained in the solution, so that the oil droplets become stable emulsion, large oil droplets are extremely difficult to form, and the removal and the recovery are not easy.
The oily waste liquid produced every year in the global range can not be counted, no matter industrial waste liquid or domestic waste liquid, direct discharge can cause extremely bad influence to water and soil environment, thereby seriously destroying the ecosystem in water, and not directly discharging, and the treatment cost of the waste liquid is too high. The treatment of the oily waste liquid can adopt various methods, and the oily waste liquid can play a certain role in removing oil, but all have certain defects, for example, the oil removal by the air floatation method has the defect of not ideal effect on removing emulsified oil in the waste liquid, the oil removal by the chemical coagulation method has the defects of large dosage of a chemical agent, generation of secondary waste and the like. At present, a method capable of efficiently removing heterogeneous oil in oily waste liquid is urgently needed in the market.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing a can effectively get rid of heterogeneous grease in the middle of the oily waste liquid, including the oil water separator of the grease of free state and emulsification state grease.
In order to achieve the above object, the present invention provides an apparatus for oil-water separation, comprising an oil-water separation chamber and an oil removal module disposed above the oil-water separation chamber; the inside of oil-water separation chamber be equipped with: the oil drop polymerization module and the nano air flotation module can generate nano vacuoles; wherein, the oil drop polymerization module comprises: the molecular condensation reaction cavity and the plurality of layers of baffles are arranged in the molecular condensation reaction cavity; the section of the baffle is wavy, and through holes for oil and water to flow through are formed in the wave crests and wave troughs of the waves; a liquid inlet is formed in the bottom of the molecular condensation reaction cavity, and a liquid outlet is formed in the top of the molecular condensation reaction cavity; the nano air flotation module is arranged above the oil drop polymerization module; the deoiling module include: an oleophylic and hydrophobic disc, a scraping blade and an oil collecting tank; under the user state, pending waste liquid warp enrich behind the liquid outlet of oil drop polymerization module in the oil water separation intracavity, oleophylic hydrophobic dish can rotate and partial submergence in the pending waste liquid in the oil water separation intracavity, the doctor-bar can with adsorb in oleophylic hydrophobic dish on the grease scrape into the oil catch bowl in.
Preferably, the apparatus further comprises: the air source device is connected with the nano air flotation module; the nano air flotation module is made of aerated ceramics.
Preferably, the oil-water separation chamber is provided with a liquid discharge port for discharging the deoiled liquid, and the liquid discharge port is communicated with a machine tool liquid tank.
Preferably, the cavity wall of the oil-water separation cavity is provided with an interlayer, and a heating resistance wire is embedded in the interlayer.
Preferably, the apparatus further comprises: and the air diaphragm pump is connected with the oil-water separation cavity and is used for pumping the waste liquid to be treated into the molecular condensation reaction cavity.
Preferably, the apparatus further comprises: and the filter is connected with the oil-water separation cavity and is used for filtering waste liquid to be treated.
Preferably, the apparatus further comprises: the electric control cabinet is used for automatically controlling the starting and stopping of equipment, and a wireless data transmission module connected with a computer terminal is arranged in the electric control cabinet.
Preferably, the apparatus further comprises: a level sensor for detecting whether the device is in a level state.
Preferably, the apparatus further comprises: and the liquid level sensor is arranged at the upper part of the oil-water separation cavity.
Preferably, the apparatus further comprises: and the sterilization module is arranged on the upper part of the oil-water separation cavity and is an ultraviolet lamp arranged on the inner wall of the oil-water separation cavity.
Compared with the prior art, the utility model, following beneficial effect has:
(1) the equipment adopts the processes of an active molecular condensation technology, a nano cavitation technology and the like to realize the high-efficiency separation of the out-phase grease in the oily waste liquid.
(2) The multifunctional intelligent sensor and the wireless data transmission module are integrated in the equipment, a user can remotely receive relevant data of the equipment, the horizontal state of the equipment, the liquid level condition, the temperature and the like can be monitored in real time, and the difficulty of manual supervision is avoided.
(3) The equipment has low operation power and no material consumption, and the economic burden of enterprises caused by equipment operation is reduced to the maximum extent.
(4) Due to the fact that the sterilization module is arranged, the device can be used for a long time aiming at the working liquid needing sterilization, the odor problem of the working liquid can be relieved, and the factory environment is improved.
(5) The equipment is provided with a temperature control system, and the temperature of the oily waste liquid can be adjusted in real time according to different environmental temperatures, so that the oil-water separation effect is optimal.
Drawings
Fig. 1 is a schematic structural diagram of the oil-water separation apparatus of the present invention.
Fig. 2 is a schematic structural diagram of an oil drop polymerization module provided in the apparatus of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
In the present invention, the words "upper", "lower", "inside", "top", "bottom", etc. indicating the orientation are used to describe the mounting position of the component in the use state, but the orientation is not used to limit the present invention.
As shown in FIG. 1, the present invention provides an apparatus for oil-water separation, which comprises an oil-water separation chamber 10 and an oil removal module 40, wherein the oil removal module 40 is disposed above the oil-water separation chamber 10. The inside of oil-water separation chamber 10 be equipped with: an oil drop polymerization module 20 and a nano air flotation module 30 capable of generating nano vacuoles. Referring to fig. 2, the oil drop polymerization module includes: the molecular condensation reaction cavity 21 and the plurality of layers of baffles 22 made of hydrophilic and oleophobic materials are arranged in the molecular condensation reaction cavity 21, the cross section of each baffle 22 is in a wave form, and through holes for oil and water to flow through are formed in wave crests and wave troughs of the waves. The bottom of the molecular condensation reaction cavity 21 is provided with a liquid inlet 23, and the top is provided with a liquid outlet 24.
The molecular agglomeration module is formed by overlapping a plurality of layers of wavy hydrophilic and oleophobic materials, and the materials can be based on SiO2/F-PEG and TiO2-F/SiO2The material wave crest of the/F-PEG surface coating is provided with small holes, and when liquid passes through the molecular condensation module from bottom to top, the hydrophilic and oleophobic characteristics and waves of the material surfaceThe structure can increase the probability of collision and agglomeration of small oil drops in the waste liquid, so that the small oil drops suspended in the waste liquid are agglomerated into large oil drops. The baffle 22 is made of hydrophilic and oleophobic material, so that oil cannot remain on the baffle 22, and the baffle 22 is kept clean and is not cleaned frequently. The through holes at the peaks and valleys of the baffle 22 allow the small oil droplets to combine to form large oil droplets when they are squeezed and pass through the through holes.
Referring to fig. 1 and 2, a waste liquid inlet 11 is disposed at a lower portion of the oil-water separation chamber 10, and the waste liquid inlet 11 is communicated with a liquid inlet 23 at a bottom of the molecular condensation reaction chamber 21. The nano air flotation module 30 is arranged above the oil drop polymerization module 20.
After the waste liquid flows out through the liquid outlet 24 of the oil drop polymerization module 20, the oil drops gradually float upward under the action of buoyancy. The nano air flotation module 30 is an aerated ceramic capable of generating nano cavitation bubbles, and is a plate-shaped ceramic membrane, micro holes of 80nm are formed in the upper side and the lower side of the ceramic membrane in the firing process, and the nano air flotation module 30 is connected with an air source device (not shown in the figure). Nano-vacuoles refer to vacuoles having diameters on the order of nanometers. Compressed air is injected into the nano air flotation module 30 through an air source device, a large amount of nano-scale cavitation bubbles are formed on the surface of the nano air flotation module 30, and the cavitation bubbles are gradually attached to the surface of oil drops in the rising process. The height of the aerated ceramic from the bottom of the oil-water separation cavity 10 is about 20cm, the air pressure in the ceramic membrane is controlled within the range of 0.3-0.5MPa, and mild airflow is generated, so that the liquid is not stirred too violently.
Heterogeneous oil in the oily waste liquid usually contains emulsified oil, the emulsified oil is some surface oily substances, such as soaps, polymer synthetic substances and the like, the emulsified oil is suspended in waste water in a fine water-in-oil state, the particle size of oil droplets is less than 10 micrometers, generally 0.1-0.2 micrometers, and the combination of oil molecules and water molecules is particularly firm because a certain amount of surfactant is contained in the solution, so that the oil droplets become stable emulsion and are extremely difficult to form large oil droplets, and the removal and the recovery are not easy. The nano-scale cavitation bubbles generated by the nano-air flotation module 30 gradually attach to the surface of the emulsified oil and fat in the rising process, and when the nano-air flotation module breaks, huge energy is locally generated to destroy the combination of the emulsified oil and water molecules, so that the emulsified oil and fat gradually float upwards under the action of buoyancy. The nano-cavitation bubbles can be continuously enlarged due to the change of internal and external pressure in the rising process, and the bubbles can be subjected to larger resistance in the rising process due to higher viscosity of the oil-containing liquid, so that the bubbles can be broken due to the combination of different forces. The liquid can also be vigorously stirred in the process of generating nano-cavitation bubbles, and the bubbles can also be broken. When the vacuoles are broken, energy is generated, part of the energy is absorbed by the emulsified oil, and the combination of the emulsified oil and water molecules is naturally destroyed.
The degreasing module 40 comprises: an oleophilic and hydrophobic disc 41, a scraping blade 42 and an oil collecting tank 43. The waste liquid entering the oil-water separation chamber 10 passes through the oil drop polymerization module 20 and the nano air flotation module 30, and under the action of buoyancy, the grease gradually floats on the liquid surface to form floating oil. Under the user state, the waste liquid warp of treating enrich behind the liquid outlet 24 outflow of oil drop polymerization module 20 in oil water separating chamber 10 in, oleophylic hydrophobic dish 41 can rotate and partial submergence in the waste liquid of treating, doctor-bar 42 can with adsorb in oleophylic hydrophobic dish 41 on the grease scrape into oil catch bowl 43 in. The oil removal module 40 is a disk skimmer, and a disk made of oleophilic material rotates in the oil-water mixture, and when the disk is unscrewed, the adsorbed spilled oil is scraped into the oil sump 43 by the scraper. The oil removal module 40 is commercially available.
In some embodiments, the oil removal module 40 is activated by a wiper motor 50. The oleophylic and hydrophobic disc 41 is disc-shaped and can rotate; the surface of the oil absorption material is made of oleophylic and hydrophobic materials and can absorb grease. Part of the structure of oleophylic and hydrophobic plate 41 is immersed in the waste liquid, that is, part of the structure of oleophylic and hydrophobic plate 41 is inserted into the upper layer of the waste liquid, and the upper layer of the waste liquid floats with floating oil, and oleophylic and hydrophobic plate 41 adsorbs the floating oil. During the clockwise rotation of the lipophilic and hydrophobic disk 41, the scraping blade 42 is fixed, and the grease adsorbed on the surface of the lipophilic and hydrophobic disk 41 is scraped off by the scraping blade 42 through friction, and falls into the oil collecting tank 43 arranged below the scraping blade 42. The oil trap 43 may be provided with an oil drain for draining the oil and collecting it with an oil drum.
The oil-water separation cavity 10 is provided with a liquid outlet 12, and waste liquid after oil removal can be discharged from the liquid outlet 12. The drain 12 may be connected to a liquid tank for recycling the treated waste liquid.
The utility model discloses an oil-water separation's processing equipment and lathe cistern intercommunication. In some embodiments, a suspension type oil absorber with an adaptive liquid level adjusting function (capable of suspending on a liquid surface and mainly absorbing floating oil floating on the liquid surface) is placed in the machine tool liquid tank, the oil-water separation chamber 10 is connected with an air diaphragm pump 60, the air diaphragm pump 60 is a pneumatic diaphragm pump, and the oily waste liquid in the machine tool liquid tank is sucked into a treatment cavity of the equipment through the air diaphragm pump 60 and the suspension type oil absorber.
In some embodiments, a filter 70 is disposed between the air diaphragm pump 60 and the liquid inlet 11, and the oily waste liquid in the liquid tank passes through the filter 70 and then enters the oil-water separation chamber 10. The filter 70 may filter out large particulate solid impurities.
In some embodiments, an interlayer is arranged on the wall of the oil-water separation chamber 10, a heating resistance wire is embedded in the interlayer, and when the thermocouple sensor senses that the temperature of the waste liquid in the chamber is not within the range of 16-50 ℃, the device can automatically control the heating resistance wire to work, so as to control the viscosity of oil, and obtain a better oil-water separation effect. When the environment temperature is too low, the temperature of the oily waste liquid is low, and the oil viscosity is too high and is not easy to remove, the equipment automatically controls the heating resistance wire to work, so that the temperature of the waste liquid in the cavity is increased, and the control temperature range is 16-50 ℃.
In some embodiments, the upper portion of the oil-water separation chamber 10 is provided with a level sensor, and when the device is in a non-horizontal state, the device is automatically closed.
In some embodiments, a liquid level sensor is disposed above the inner wall of the oil-water separation chamber 10, and when the liquid level in the oil-water separation chamber 10 is about to exceed the liquid discharge port 12, the air diaphragm pump 60 stops working to stop the input of the waste liquid.
In some embodiments, the upper portion of the oil-water separation chamber 10 is provided with a sterilization module, and the sterilization module performs a sterilization treatment on the waste liquid by using an ultraviolet lamp, ozone or a photocatalytic technology, for example, the ultraviolet lamp and a photocatalytic oxidation film are mounted on the inner wall of the oil-water separation chamber 10.
The outside of water oil separating chamber 10 is equipped with automatically controlled cabinet 80, the start-up of steerable equipment, stops etc. and automatically controlled cabinet 80 is inside to be equipped with a wireless data transmission module, and this module can be with equipment operation, control by temperature change, pump running state relevant signal transmission to the terminal computer on, the user can long-range effective control and management this equipment.
Four universal wheels 90 are arranged below the equipment, so that the whole equipment can be moved conveniently, and the carrying is convenient, and the labor intensity during carrying is reduced.
In addition, the effectiveness of the present invention is demonstrated through the following experiments.
Use the cutting waste liquid of taking from certain transmission shaft machinery factory scene in the shanghai as the treatment object, according to 50L cutting waste liquid meter, adopt the utility model provides an equipment is handled. The cutting waste liquid groove containing 50L of cutting waste liquid is connected with the device, the temperature in the reaction cavity of the device is controlled at 16-50 ℃, and the treatment time is 1.5 h. Wherein the sterilization module of the device is set to be in a mode based on an ultraviolet lamp, the wavelength of the ultraviolet lamp is 254nm, the power is 37W, the length of the lamp tube is 44cm, and the output intensity of the ultraviolet light is 260 muW/cm2. And (4) testing the bacteria content and the oil content of the cutting waste liquid before and after treatment.
Test method
1. And (3) testing the bacterial content: and (3) detecting the bacterial content in the cutting waste liquid before and after treatment by adopting a flat plate counting method.
2. And (3) testing the oil content: weighing two glassware of the same specification, wherein the weight of the glassware is A1, adding 10g of cutting waste liquid before and after treatment into the glassware respectively by A2, putting the two glassware into a vacuum drying oven with the fixed temperature of 70 ℃ for drying for a period of time until only grease is left in the glassware, and weighing the glassware as B1 and B2. The oil contents of the cutting waste liquid before and after treatment are respectively 1- [ (B1-A1)/10], 1- [ (B2-A2)/10 ].
The experimental results are as follows: the bacteria content and oil content are shown in the following table:
Figure BDA0002162723880000061
Figure BDA0002162723880000071
the data in the table show that the device has good sterilization performance and obvious oil-water separation effect.
To sum up, the utility model discloses an equipment for water oil separating has many advantages such as safe, reliable, high-efficient, low cost, do not introduce plus chemical agent, no secondary pollution, can effectually separate out heterogeneous oil in the middle of the oily waste liquid, is an economic environmental protection's waste liquid treatment equipment.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. The equipment for oil-water separation is characterized by comprising an oil-water separation cavity and an oil removal module arranged above the oil-water separation cavity; the inside of oil-water separation chamber be equipped with: the oil drop polymerization module and the nano air flotation module can generate nano vacuoles; wherein the content of the first and second substances,
the oil drop polymerization module comprises: the molecular condensation reaction cavity and the plurality of layers of baffles are arranged in the molecular condensation reaction cavity; the section of the baffle is wavy, and through holes for oil and water to flow through are formed in the wave crests and wave troughs of the waves; a liquid inlet is formed in the bottom of the molecular condensation reaction cavity, and a liquid outlet is formed in the top of the molecular condensation reaction cavity;
the nano air flotation module is arranged above the oil drop polymerization module;
the deoiling module include: an oleophylic and hydrophobic disc, a scraping blade and an oil collecting tank; under the user state, pending waste liquid warp enrich behind the liquid outlet of oil drop polymerization module in the oil water separation intracavity, oleophylic hydrophobic dish can rotate and partial submergence in the pending waste liquid in the oil water separation intracavity, the doctor-bar can with adsorb in oleophylic hydrophobic dish on the grease scrape into the oil catch bowl in.
2. The apparatus for oil-water separation of claim 1, further comprising: the air source device is connected with the nano air flotation module; the nano air flotation module is made of aerated ceramics.
3. The apparatus for oil-water separation according to claim 1, wherein the oil-water separation chamber is provided with a drain port for draining the deoiled liquid, and the drain port is communicated with a machine tool liquid tank.
4. The oil-water separation device of claim 1, wherein an interlayer is provided on the wall of the oil-water separation chamber, and a heating resistance wire is embedded in the interlayer.
5. The apparatus for oil-water separation of claim 1, further comprising: and the air diaphragm pump is connected with the oil-water separation cavity and is used for pumping the waste liquid to be treated into the molecular condensation reaction cavity.
6. The apparatus for oil-water separation of claim 1, further comprising: and the filter is connected with the oil-water separation cavity and is used for filtering waste liquid to be treated.
7. The apparatus for oil-water separation of claim 1, further comprising: the electric control cabinet is used for automatically controlling the starting and stopping of equipment, and a wireless data transmission module connected with a computer terminal is arranged in the electric control cabinet.
8. The apparatus for oil-water separation of claim 1, further comprising: a level sensor for detecting whether the device is in a level state.
9. The apparatus for oil-water separation of claim 1, further comprising: and the liquid level sensor is arranged at the upper part of the oil-water separation cavity.
10. The apparatus for oil-water separation of claim 1, further comprising: and the sterilization module is arranged on the upper part of the oil-water separation cavity and is an ultraviolet lamp arranged on the inner wall of the oil-water separation cavity.
CN201921292728.0U 2019-08-12 2019-08-12 Equipment for oil-water separation Active CN210384935U (en)

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CN201921292728.0U CN210384935U (en) 2019-08-12 2019-08-12 Equipment for oil-water separation

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Application Number Priority Date Filing Date Title
CN201921292728.0U CN210384935U (en) 2019-08-12 2019-08-12 Equipment for oil-water separation

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